Lore (from the Encounter Journal)

Locked in a contest of wills, the generals Ka'zir and Tek'ris constantly vie
for dominance over their fellow aqir. As they wrest control away from one
another, the hive shifts its tactics and obeys each of their commands with
fervent loyalty.

2.

Encounter Journal

We have encounter journal pages for each of the four difficulties, which you
can access by clicking the links below.